Improvement in carriage-springs



w i s@ ma ern-s. Ca'rriage-Spring-' Patented Feb. 9.1875.

UNITED STATES PATENT EEICEa WILLIAM S. HIGGINS, OF OROVILLE, CALIFORNIA.

IMPROVEMENT lN CARRIAGE-SPRINGS.

Specification forming part of.Letters Patent No. 159,672, dated February 9, 1875; application tiled I November 10, 1874.

lowing is a speciiication:

My invention relates to that class of sprin gs known as C-springs; and has for its object to render such very elastic, and at the same time very strong.

To enable those skilled to more fully appreciate my invention in its adaptation to use, I will proceed to describe the same, referring to the accompanying drawing, in which- Figure l is a longitudinal section of a wagon-body with my improvements attached; Fig. 2, a bottom view of the same; and Fig. 3, an end elevation.

Similar letters indicate like parts in the several views.

A is the body or base of a wagon. The frame is composed of the side reaches or bars B B, and cross-bars or axles G G. The former are secured to the latter by suitable staplebolts D. E are the springs, which are each formed of two strips ot' fiat spring metal, joined together at a, forming an eye through which a bolt, 1)passes, securing it to the nd of a bar, c,- seonred to the body A, thus forming at b.a, pivotal joint. The other ends of the two flat pieces of spring metal, after being bent in about the form shown, are made to embrace the under and upper sides of the reaches or side bars, and there secured, thus giving to the two pieces of metal curves whose radiuses are different, while the ends are secured each in the same plane, thus producing, as it were, two springs, whose strength or elasticity vary in proportion to the difference in the radiuses of their curves, and which, being rigidly secured at each end, makes a compound spring of the two, each aiding the other, and both combining to give increased elasticity and strength.

In order to avoid the longitudinal throw of the body A a guide or brace-rod, F, is linked at d to the hind or rear axle or cross-bar, C, and to the under side of the body Aat or near its forward end, the rod permitting the vertical movement of the Vbody A through its pivotal joints e, and preventing any longitudinal thrust lor throw in an obvious manner.

What I claim as new, and desire to secure by Letters Patent, is

The compound C-springs, composed of two at pieces of metal bent in different curves, secured to and in combination with the body and side bars, subtantially as and for the purpose set forth.

WM. S. HIGGINS.

Witnesses:

GEORGE C. PERKINS, P. O. HUNDLEY. 

